Badlands National Park, South Dakota, United States

Color Zone: Dark GrayIs Camping Allowed? Yes, at Cedar Pass and Sage CreekEntrance Fee? $15Description: Badlands National Park is a great place for stargazing. Besides being very dark, there are no trees and few sky obstructions out here on the Great Plains. You can probably observe directly from either of the 2 campgrounds. But there are also plenty of parking lots along the park road with scenic overlooks.